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8ca151b5 JB |
1 | /****************************************************************************** |
2 | * | |
3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | * redistributing this file, you may do so under either license. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
51368bf7 | 8 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
4fb06283 | 9 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
8ca151b5 JB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of version 2 of the GNU General Public License as | |
13 | * published by the Free Software Foundation. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
23 | * USA | |
24 | * | |
25 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 26 | * in the file called COPYING. |
8ca151b5 JB |
27 | * |
28 | * Contact Information: | |
29 | * Intel Linux Wireless <ilw@linux.intel.com> | |
30 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
31 | * | |
32 | * BSD LICENSE | |
33 | * | |
51368bf7 | 34 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
4fb06283 | 35 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
8ca151b5 JB |
36 | * All rights reserved. |
37 | * | |
38 | * Redistribution and use in source and binary forms, with or without | |
39 | * modification, are permitted provided that the following conditions | |
40 | * are met: | |
41 | * | |
42 | * * Redistributions of source code must retain the above copyright | |
43 | * notice, this list of conditions and the following disclaimer. | |
44 | * * Redistributions in binary form must reproduce the above copyright | |
45 | * notice, this list of conditions and the following disclaimer in | |
46 | * the documentation and/or other materials provided with the | |
47 | * distribution. | |
48 | * * Neither the name Intel Corporation nor the names of its | |
49 | * contributors may be used to endorse or promote products derived | |
50 | * from this software without specific prior written permission. | |
51 | * | |
52 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
53 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
54 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
55 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
56 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
57 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
58 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
59 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
60 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
61 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
62 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
63 | * | |
64 | *****************************************************************************/ | |
65 | #include <linux/module.h> | |
1bd3cbc1 | 66 | #include <linux/vmalloc.h> |
8ca151b5 JB |
67 | #include <net/mac80211.h> |
68 | ||
69 | #include "iwl-notif-wait.h" | |
70 | #include "iwl-trans.h" | |
71 | #include "iwl-op-mode.h" | |
72 | #include "iwl-fw.h" | |
73 | #include "iwl-debug.h" | |
74 | #include "iwl-drv.h" | |
75 | #include "iwl-modparams.h" | |
76 | #include "mvm.h" | |
77 | #include "iwl-phy-db.h" | |
78 | #include "iwl-eeprom-parse.h" | |
79 | #include "iwl-csr.h" | |
80 | #include "iwl-io.h" | |
81 | #include "iwl-prph.h" | |
82 | #include "rs.h" | |
83 | #include "fw-api-scan.h" | |
84 | #include "time-event.h" | |
85 | ||
8ca151b5 | 86 | #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux" |
8ca151b5 | 87 | MODULE_DESCRIPTION(DRV_DESCRIPTION); |
8ca151b5 JB |
88 | MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
89 | MODULE_LICENSE("GPL"); | |
90 | ||
91 | static const struct iwl_op_mode_ops iwl_mvm_ops; | |
92 | ||
93 | struct iwl_mvm_mod_params iwlmvm_mod_params = { | |
94 | .power_scheme = IWL_POWER_SCHEME_BPS, | |
ce71c2f7 | 95 | .tfd_q_hang_detect = true |
8ca151b5 JB |
96 | /* rest of fields are 0 by default */ |
97 | }; | |
98 | ||
99 | module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO); | |
100 | MODULE_PARM_DESC(init_dbg, | |
101 | "set to true to debug an ASSERT in INIT fw (default: false"); | |
102 | module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO); | |
103 | MODULE_PARM_DESC(power_scheme, | |
104 | "power management scheme: 1-active, 2-balanced, 3-low power, default: 2"); | |
ce71c2f7 EG |
105 | module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect, |
106 | bool, S_IRUGO); | |
107 | MODULE_PARM_DESC(tfd_q_hang_detect, | |
108 | "TFD queues hang detection (default: true"); | |
8ca151b5 JB |
109 | |
110 | /* | |
111 | * module init and exit functions | |
112 | */ | |
113 | static int __init iwl_mvm_init(void) | |
114 | { | |
115 | int ret; | |
116 | ||
117 | ret = iwl_mvm_rate_control_register(); | |
118 | if (ret) { | |
119 | pr_err("Unable to register rate control algorithm: %d\n", ret); | |
120 | return ret; | |
121 | } | |
122 | ||
123 | ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops); | |
124 | ||
125 | if (ret) { | |
126 | pr_err("Unable to register MVM op_mode: %d\n", ret); | |
127 | iwl_mvm_rate_control_unregister(); | |
128 | } | |
129 | ||
130 | return ret; | |
131 | } | |
132 | module_init(iwl_mvm_init); | |
133 | ||
134 | static void __exit iwl_mvm_exit(void) | |
135 | { | |
136 | iwl_opmode_deregister("iwlmvm"); | |
137 | iwl_mvm_rate_control_unregister(); | |
138 | } | |
139 | module_exit(iwl_mvm_exit); | |
140 | ||
141 | static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) | |
142 | { | |
143 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
144 | u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash; | |
145 | u32 reg_val = 0; | |
a0544272 MH |
146 | u32 phy_config = iwl_mvm_get_phy_config(mvm); |
147 | ||
148 | radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >> | |
149 | FW_PHY_CFG_RADIO_TYPE_POS; | |
150 | radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >> | |
151 | FW_PHY_CFG_RADIO_STEP_POS; | |
152 | radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >> | |
153 | FW_PHY_CFG_RADIO_DASH_POS; | |
8ca151b5 JB |
154 | |
155 | /* SKU control */ | |
156 | reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) << | |
157 | CSR_HW_IF_CONFIG_REG_POS_MAC_STEP; | |
158 | reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) << | |
159 | CSR_HW_IF_CONFIG_REG_POS_MAC_DASH; | |
160 | ||
161 | /* radio configuration */ | |
162 | reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE; | |
163 | reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; | |
164 | reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; | |
165 | ||
166 | WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) & | |
167 | ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE); | |
168 | ||
9b1fcc11 LK |
169 | /* |
170 | * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and | |
171 | * shouldn't be set to any non-zero value. The same is supposed to be | |
172 | * true of the other HW, but unsetting them (such as the 7260) causes | |
173 | * automatic tests to fail on seemingly unrelated errors. Need to | |
174 | * further investigate this, but for now we'll separate cases. | |
175 | */ | |
176 | if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) | |
177 | reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI; | |
8ca151b5 | 178 | |
e139dc4a LE |
179 | iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG, |
180 | CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | | |
181 | CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | | |
182 | CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | | |
183 | CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | | |
184 | CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | | |
185 | CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | | |
186 | CSR_HW_IF_CONFIG_REG_BIT_MAC_SI, | |
187 | reg_val); | |
8ca151b5 JB |
188 | |
189 | IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, | |
190 | radio_cfg_step, radio_cfg_dash); | |
191 | ||
192 | /* | |
193 | * W/A : NIC is stuck in a reset state after Early PCIe power off | |
194 | * (PCIe power is lost before PERST# is asserted), causing ME FW | |
195 | * to lose ownership and not being able to obtain it back. | |
196 | */ | |
95411d04 | 197 | if (!mvm->trans->cfg->apmg_not_supported) |
3073d8c0 EH |
198 | iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, |
199 | APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, | |
200 | ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); | |
8ca151b5 JB |
201 | } |
202 | ||
203 | struct iwl_rx_handlers { | |
1230b16b | 204 | u16 cmd_id; |
8ca151b5 | 205 | bool async; |
0416841d | 206 | void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); |
8ca151b5 JB |
207 | }; |
208 | ||
209 | #define RX_HANDLER(_cmd_id, _fn, _async) \ | |
210 | { .cmd_id = _cmd_id , .fn = _fn , .async = _async } | |
1230b16b AS |
211 | #define RX_HANDLER_GRP(_grp, _cmd, _fn, _async) \ |
212 | { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .async = _async } | |
8ca151b5 JB |
213 | |
214 | /* | |
215 | * Handlers for fw notifications | |
216 | * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME | |
217 | * This list should be in order of frequency for performance purposes. | |
218 | * | |
219 | * The handler can be SYNC - this means that it will be called in the Rx path | |
220 | * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and | |
221 | * only in this case!), it should be set as ASYNC. In that case, it will be | |
222 | * called from a worker with mvm->mutex held. | |
223 | */ | |
224 | static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { | |
8ca151b5 JB |
225 | RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false), |
226 | RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false), | |
227 | RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false), | |
8ca151b5 | 228 | |
f421f9c3 | 229 | RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true), |
bd3398e2 | 230 | RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true), |
9ee718aa | 231 | RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true), |
b9fae2d5 EG |
232 | RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION, |
233 | iwl_mvm_rx_ant_coupling_notif, true), | |
f421f9c3 | 234 | |
497b49d2 | 235 | RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false), |
8ba2d7a1 | 236 | RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc, true), |
497b49d2 | 237 | |
3e56eadf JB |
238 | RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false), |
239 | ||
e5d74646 | 240 | RX_HANDLER(SCAN_ITERATION_COMPLETE, |
6e56f01d | 241 | iwl_mvm_rx_lmac_scan_iter_complete_notif, false), |
35a000b7 | 242 | RX_HANDLER(SCAN_OFFLOAD_COMPLETE, |
6e56f01d LC |
243 | iwl_mvm_rx_lmac_scan_complete_notif, true), |
244 | RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found, | |
35a000b7 | 245 | false), |
d2496221 DS |
246 | RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif, |
247 | true), | |
ee9219b2 AS |
248 | RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC, |
249 | iwl_mvm_rx_umac_scan_iter_complete_notif, false), | |
497b49d2 | 250 | |
8ca151b5 JB |
251 | RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false), |
252 | ||
d64048ed HG |
253 | RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, |
254 | false), | |
255 | ||
8ca151b5 | 256 | RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false), |
175a70b7 AB |
257 | RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, |
258 | iwl_mvm_power_uapsd_misbehaving_ap_notif, false), | |
ea9af24d LC |
259 | RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true), |
260 | ||
1d3c3f63 AN |
261 | RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif, |
262 | true), | |
30269c12 | 263 | RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false), |
ce792918 | 264 | RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler, true), |
1d3c3f63 | 265 | |
8ca151b5 JB |
266 | }; |
267 | #undef RX_HANDLER | |
1230b16b | 268 | #undef RX_HANDLER_GRP |
8ca151b5 JB |
269 | #define CMD(x) [x] = #x |
270 | ||
32c93a70 | 271 | static const char *const iwl_mvm_cmd_strings[REPLY_MAX + 1] = { |
8ca151b5 JB |
272 | CMD(MVM_ALIVE), |
273 | CMD(REPLY_ERROR), | |
e5046019 | 274 | CMD(ECHO_CMD), |
8ca151b5 JB |
275 | CMD(INIT_COMPLETE_NOTIF), |
276 | CMD(PHY_CONTEXT_CMD), | |
277 | CMD(MGMT_MCAST_KEY), | |
278 | CMD(TX_CMD), | |
279 | CMD(TXPATH_FLUSH), | |
04fd2c28 | 280 | CMD(SHARED_MEM_CFG), |
8ca151b5 JB |
281 | CMD(MAC_CONTEXT_CMD), |
282 | CMD(TIME_EVENT_CMD), | |
283 | CMD(TIME_EVENT_NOTIFICATION), | |
284 | CMD(BINDING_CONTEXT_CMD), | |
285 | CMD(TIME_QUOTA_CMD), | |
4ac6cb59 | 286 | CMD(NON_QOS_TX_COUNTER_CMD), |
0becb377 | 287 | CMD(DC2DC_CONFIG_CMD), |
8ca151b5 JB |
288 | CMD(NVM_ACCESS_CMD), |
289 | CMD(PHY_CONFIGURATION_CMD), | |
290 | CMD(CALIB_RES_NOTIF_PHY_DB), | |
291 | CMD(SET_CALIB_DEFAULT_CMD), | |
a6c4fb44 | 292 | CMD(FW_PAGING_BLOCK_CMD), |
5a258aae | 293 | CMD(ADD_STA_KEY), |
8ca151b5 | 294 | CMD(ADD_STA), |
e1120187 | 295 | CMD(FW_GET_ITEM_CMD), |
8ca151b5 JB |
296 | CMD(REMOVE_STA), |
297 | CMD(LQ_CMD), | |
298 | CMD(SCAN_OFFLOAD_CONFIG_CMD), | |
35a000b7 | 299 | CMD(MATCH_FOUND_NOTIFICATION), |
8ca151b5 JB |
300 | CMD(SCAN_OFFLOAD_REQUEST_CMD), |
301 | CMD(SCAN_OFFLOAD_ABORT_CMD), | |
b112889c | 302 | CMD(HOT_SPOT_CMD), |
8ca151b5 JB |
303 | CMD(SCAN_OFFLOAD_COMPLETE), |
304 | CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD), | |
fb98be5e | 305 | CMD(SCAN_ITERATION_COMPLETE), |
8ca151b5 JB |
306 | CMD(POWER_TABLE_CMD), |
307 | CMD(WEP_KEY), | |
308 | CMD(REPLY_RX_PHY_CMD), | |
309 | CMD(REPLY_RX_MPDU_CMD), | |
571765c8 | 310 | CMD(BEACON_NOTIFICATION), |
8ca151b5 | 311 | CMD(BEACON_TEMPLATE_CMD), |
91a8bcde | 312 | CMD(STATISTICS_CMD), |
8ca151b5 | 313 | CMD(STATISTICS_NOTIFICATION), |
3e56eadf | 314 | CMD(EOSP_NOTIFICATION), |
88f2fd73 | 315 | CMD(REDUCE_TX_POWER_CMD), |
8ca151b5 JB |
316 | CMD(TX_ANT_CONFIGURATION_CMD), |
317 | CMD(D3_CONFIG_CMD), | |
98ee7783 | 318 | CMD(D0I3_END_CMD), |
8ca151b5 JB |
319 | CMD(PROT_OFFLOAD_CONFIG_CMD), |
320 | CMD(OFFLOADS_QUERY_CMD), | |
321 | CMD(REMOTE_WAKE_CONFIG_CMD), | |
322 | CMD(WOWLAN_PATTERNS), | |
323 | CMD(WOWLAN_CONFIGURATION), | |
324 | CMD(WOWLAN_TSC_RSC_PARAM), | |
325 | CMD(WOWLAN_TKIP_PARAM), | |
326 | CMD(WOWLAN_KEK_KCK_MATERIAL), | |
327 | CMD(WOWLAN_GET_STATUSES), | |
328 | CMD(WOWLAN_TX_POWER_PER_DB), | |
b04998f3 LC |
329 | CMD(SCAN_OFFLOAD_PROFILES_QUERY_CMD), |
330 | CMD(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD), | |
331 | CMD(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD), | |
3b4612fb | 332 | CMD(CARD_STATE_NOTIFICATION), |
d64048ed | 333 | CMD(MISSED_BEACONS_NOTIFICATION), |
fb3ceb81 EG |
334 | CMD(BT_COEX_PRIO_TABLE), |
335 | CMD(BT_COEX_PROT_ENV), | |
336 | CMD(BT_PROFILE_NOTIFICATION), | |
337 | CMD(BT_CONFIG), | |
51b6b9e0 | 338 | CMD(MCAST_FILTER_CMD), |
c87163b9 | 339 | CMD(BCAST_FILTER_CMD), |
7a06a38a | 340 | CMD(REPLY_SF_CFG_CMD), |
7df15b1e | 341 | CMD(REPLY_BEACON_FILTERING_CMD), |
a0a09243 LC |
342 | CMD(CMD_DTS_MEASUREMENT_TRIGGER), |
343 | CMD(DTS_MEASUREMENT_NOTIFICATION), | |
9ee718aa | 344 | CMD(REPLY_THERMAL_MNG_BACKOFF), |
e811ada7 | 345 | CMD(MAC_PM_POWER_TABLE), |
9180ac50 | 346 | CMD(LTR_CONFIG), |
dac94da8 | 347 | CMD(BT_COEX_CI), |
430a3bba EG |
348 | CMD(BT_COEX_UPDATE_SW_BOOST), |
349 | CMD(BT_COEX_UPDATE_CORUN_LUT), | |
350 | CMD(BT_COEX_UPDATE_REDUCED_TXP), | |
175a70b7 | 351 | CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), |
b9fae2d5 | 352 | CMD(ANTENNA_COUPLING_NOTIFICATION), |
3edf8ff6 | 353 | CMD(SCD_QUEUE_CFG), |
d2496221 DS |
354 | CMD(SCAN_CFG_CMD), |
355 | CMD(SCAN_REQ_UMAC), | |
356 | CMD(SCAN_ABORT_UMAC), | |
357 | CMD(SCAN_COMPLETE_UMAC), | |
77c5d7ef AN |
358 | CMD(TDLS_CHANNEL_SWITCH_CMD), |
359 | CMD(TDLS_CHANNEL_SWITCH_NOTIFICATION), | |
307e4723 | 360 | CMD(TDLS_CONFIG_CMD), |
dcaf9f5e | 361 | CMD(MCC_UPDATE_CMD), |
ee9219b2 | 362 | CMD(SCAN_ITERATION_COMPLETE_UMAC), |
8ca151b5 JB |
363 | }; |
364 | #undef CMD | |
365 | ||
366 | /* this forward declaration can avoid to export the function */ | |
367 | static void iwl_mvm_async_handlers_wk(struct work_struct *wk); | |
37577fe2 | 368 | static void iwl_mvm_d0i3_exit_work(struct work_struct *wk); |
8ca151b5 | 369 | |
0c0e2c71 IY |
370 | static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg) |
371 | { | |
372 | const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs; | |
373 | ||
374 | if (!pwr_tx_backoff) | |
375 | return 0; | |
376 | ||
377 | while (pwr_tx_backoff->pwr) { | |
378 | if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr) | |
379 | return pwr_tx_backoff->backoff; | |
380 | ||
381 | pwr_tx_backoff++; | |
382 | } | |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
4bfa47f3 EG |
387 | static void iwl_mvm_fw_error_dump_wk(struct work_struct *work); |
388 | ||
8ca151b5 JB |
389 | static struct iwl_op_mode * |
390 | iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, | |
391 | const struct iwl_fw *fw, struct dentry *dbgfs_dir) | |
392 | { | |
393 | struct ieee80211_hw *hw; | |
394 | struct iwl_op_mode *op_mode; | |
395 | struct iwl_mvm *mvm; | |
396 | struct iwl_trans_config trans_cfg = {}; | |
397 | static const u8 no_reclaim_cmds[] = { | |
398 | TX_CMD, | |
399 | }; | |
400 | int err, scan_size; | |
0c0e2c71 | 401 | u32 min_backoff; |
8ca151b5 | 402 | |
c4d83271 EG |
403 | /* |
404 | * We use IWL_MVM_STATION_COUNT to check the validity of the station | |
405 | * index all over the driver - check that its value corresponds to the | |
406 | * array size. | |
407 | */ | |
408 | BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT); | |
409 | ||
8ca151b5 JB |
410 | /******************************** |
411 | * 1. Allocating and configuring HW data | |
412 | ********************************/ | |
413 | hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) + | |
414 | sizeof(struct iwl_mvm), | |
415 | &iwl_mvm_hw_ops); | |
416 | if (!hw) | |
417 | return NULL; | |
418 | ||
745160ee OG |
419 | if (cfg->max_rx_agg_size) |
420 | hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size; | |
421 | ||
77d96730 GG |
422 | if (cfg->max_tx_agg_size) |
423 | hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size; | |
424 | ||
8ca151b5 JB |
425 | op_mode = hw->priv; |
426 | op_mode->ops = &iwl_mvm_ops; | |
8ca151b5 JB |
427 | |
428 | mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
429 | mvm->dev = trans->dev; | |
430 | mvm->trans = trans; | |
431 | mvm->cfg = cfg; | |
432 | mvm->fw = fw; | |
433 | mvm->hw = hw; | |
434 | ||
291aa7c4 EH |
435 | mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0; |
436 | ||
19e737c9 EL |
437 | mvm->aux_queue = 15; |
438 | mvm->first_agg_queue = 16; | |
439 | mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1; | |
440 | if (mvm->cfg->base_params->num_of_queues == 16) { | |
441 | mvm->aux_queue = 11; | |
442 | mvm->first_agg_queue = 12; | |
443 | } | |
1f3b0ff8 | 444 | mvm->sf_state = SF_UNINIT; |
ddfc1593 | 445 | mvm->low_latency_agg_frame_limit = 6; |
7b358f06 | 446 | mvm->cur_ucode = IWL_UCODE_INIT; |
19e737c9 | 447 | |
8ca151b5 | 448 | mutex_init(&mvm->mutex); |
d15a747f | 449 | mutex_init(&mvm->d0i3_suspend_mutex); |
8ca151b5 JB |
450 | spin_lock_init(&mvm->async_handlers_lock); |
451 | INIT_LIST_HEAD(&mvm->time_event_list); | |
b112889c | 452 | INIT_LIST_HEAD(&mvm->aux_roc_te_list); |
8ca151b5 JB |
453 | INIT_LIST_HEAD(&mvm->async_handlers_list); |
454 | spin_lock_init(&mvm->time_event_lock); | |
455 | ||
456 | INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); | |
457 | INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); | |
458 | INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk); | |
37577fe2 | 459 | INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work); |
d2709ad7 | 460 | INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk); |
1d3c3f63 | 461 | INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work); |
8ca151b5 | 462 | |
b2492501 | 463 | spin_lock_init(&mvm->d0i3_tx_lock); |
576eeee9 | 464 | spin_lock_init(&mvm->refs_lock); |
b2492501 AN |
465 | skb_queue_head_init(&mvm->d0i3_tx); |
466 | init_waitqueue_head(&mvm->d0i3_exit_waitq); | |
467 | ||
8ca151b5 JB |
468 | SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); |
469 | ||
470 | /* | |
471 | * Populate the state variables that the transport layer needs | |
472 | * to know about. | |
473 | */ | |
474 | trans_cfg.op_mode = op_mode; | |
475 | trans_cfg.no_reclaim_cmds = no_reclaim_cmds; | |
476 | trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds); | |
477 | trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K; | |
ab02165c AE |
478 | trans_cfg.wide_cmd_header = fw_has_api(&mvm->fw->ucode_capa, |
479 | IWL_UCODE_TLV_API_WIDE_CMD_HDR); | |
8ca151b5 | 480 | |
25b9ea5c | 481 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE) |
8ca151b5 JB |
482 | trans_cfg.bc_table_dword = true; |
483 | ||
8ca151b5 JB |
484 | trans_cfg.command_names = iwl_mvm_cmd_strings; |
485 | ||
486 | trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE; | |
b2d81db7 | 487 | trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD; |
3a736bcb | 488 | trans_cfg.scd_set_active = true; |
8ca151b5 | 489 | |
b4821767 LK |
490 | trans_cfg.sdio_adma_addr = fw->sdio_adma_addr; |
491 | ||
4cf677fd EG |
492 | /* Set a short watchdog for the command queue */ |
493 | trans_cfg.cmd_q_wdg_timeout = | |
5d42e7b2 | 494 | iwl_mvm_get_wd_timeout(mvm, NULL, false, true); |
4cf677fd | 495 | |
8ca151b5 JB |
496 | snprintf(mvm->hw->wiphy->fw_version, |
497 | sizeof(mvm->hw->wiphy->fw_version), | |
498 | "%s", fw->fw_version); | |
499 | ||
500 | /* Configure transport layer */ | |
501 | iwl_trans_configure(mvm->trans, &trans_cfg); | |
502 | ||
503 | trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD; | |
504 | trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start); | |
09e350f7 LK |
505 | trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv; |
506 | trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num; | |
507 | memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv, | |
508 | sizeof(trans->dbg_conf_tlv)); | |
d2709ad7 | 509 | trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv; |
8ca151b5 JB |
510 | |
511 | /* set up notification wait support */ | |
512 | iwl_notification_wait_init(&mvm->notif_wait); | |
513 | ||
514 | /* Init phy db */ | |
515 | mvm->phy_db = iwl_phy_db_init(trans); | |
516 | if (!mvm->phy_db) { | |
517 | IWL_ERR(mvm, "Cannot init phy_db\n"); | |
518 | goto out_free; | |
519 | } | |
520 | ||
521 | IWL_INFO(mvm, "Detected %s, REV=0x%X\n", | |
522 | mvm->cfg->name, mvm->trans->hw_rev); | |
523 | ||
0c0e2c71 IY |
524 | min_backoff = calc_min_backoff(trans, cfg); |
525 | iwl_mvm_tt_initialize(mvm, min_backoff); | |
4fb06283 EH |
526 | |
527 | if (iwlwifi_mod_params.nvm_file) | |
e02a9d60 | 528 | mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; |
4fb06283 EH |
529 | else |
530 | IWL_DEBUG_EEPROM(mvm->trans->dev, | |
531 | "working without external nvm file\n"); | |
9ee718aa | 532 | |
e02a9d60 | 533 | if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name, |
14b485f0 EH |
534 | "not allowing power-up and not having nvm_file\n")) |
535 | goto out_free; | |
536 | ||
81a67e32 | 537 | /* |
0ade579c | 538 | * Even if nvm exists in the nvm_file driver should read again the nvm |
14b485f0 EH |
539 | * from the nic because there might be entries that exist in the OTP |
540 | * and not in the file. | |
541 | * for nics with no_power_up_nic_in_init: rely completley on nvm_file | |
81a67e32 | 542 | */ |
e02a9d60 | 543 | if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) { |
14b485f0 | 544 | err = iwl_nvm_init(mvm, false); |
8c678ed4 EP |
545 | if (err) |
546 | goto out_free; | |
81a67e32 EL |
547 | } else { |
548 | err = iwl_trans_start_hw(mvm->trans); | |
549 | if (err) | |
550 | goto out_free; | |
551 | ||
552 | mutex_lock(&mvm->mutex); | |
553 | err = iwl_run_init_mvm_ucode(mvm, true); | |
b93b1fe3 LK |
554 | if (!err || !iwlmvm_mod_params.init_dbg) |
555 | iwl_trans_stop_device(trans); | |
81a67e32 EL |
556 | mutex_unlock(&mvm->mutex); |
557 | /* returns 0 if successful, 1 if success but in rfkill */ | |
558 | if (err < 0 && !iwlmvm_mod_params.init_dbg) { | |
559 | IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); | |
560 | goto out_free; | |
561 | } | |
8ca151b5 JB |
562 | } |
563 | ||
d2496221 | 564 | scan_size = iwl_mvm_scan_size(mvm); |
fb98be5e | 565 | |
8ca151b5 JB |
566 | mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL); |
567 | if (!mvm->scan_cmd) | |
568 | goto out_free; | |
569 | ||
5a4b2afa HD |
570 | /* Set EBS as successful as long as not stated otherwise by the FW. */ |
571 | mvm->last_ebs_successful = true; | |
572 | ||
8ca151b5 JB |
573 | err = iwl_mvm_mac_setup_register(mvm); |
574 | if (err) | |
575 | goto out_free; | |
576 | ||
577 | err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir); | |
578 | if (err) | |
579 | goto out_unregister; | |
580 | ||
3848ab66 MG |
581 | memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); |
582 | ||
7498cf4c | 583 | /* rpm starts with a taken ref. only set the appropriate bit here. */ |
576eeee9 | 584 | mvm->refs[IWL_MVM_REF_UCODE_DOWN] = 1; |
7498cf4c | 585 | |
ce792918 GG |
586 | iwl_mvm_tof_init(mvm); |
587 | ||
8ca151b5 JB |
588 | return op_mode; |
589 | ||
590 | out_unregister: | |
591 | ieee80211_unregister_hw(mvm->hw); | |
91b0d119 | 592 | iwl_mvm_leds_exit(mvm); |
8ca151b5 JB |
593 | out_free: |
594 | iwl_phy_db_free(mvm->phy_db); | |
595 | kfree(mvm->scan_cmd); | |
e02a9d60 | 596 | if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name) |
a4082843 | 597 | iwl_trans_op_mode_leave(trans); |
8ca151b5 JB |
598 | ieee80211_free_hw(mvm->hw); |
599 | return NULL; | |
600 | } | |
601 | ||
602 | static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) | |
603 | { | |
604 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
605 | int i; | |
606 | ||
607 | iwl_mvm_leds_exit(mvm); | |
608 | ||
9ee718aa EL |
609 | iwl_mvm_tt_exit(mvm); |
610 | ||
8ca151b5 JB |
611 | ieee80211_unregister_hw(mvm->hw); |
612 | ||
613 | kfree(mvm->scan_cmd); | |
e59647ea EP |
614 | kfree(mvm->mcast_filter_cmd); |
615 | mvm->mcast_filter_cmd = NULL; | |
8ca151b5 | 616 | |
afc66bb7 JB |
617 | #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS) |
618 | kfree(mvm->d3_resume_sram); | |
3c2f3b20 LC |
619 | if (mvm->nd_config) { |
620 | kfree(mvm->nd_config->match_sets); | |
621 | kfree(mvm->nd_config); | |
622 | mvm->nd_config = NULL; | |
3c2f3b20 | 623 | } |
afc66bb7 JB |
624 | #endif |
625 | ||
a4082843 | 626 | iwl_trans_op_mode_leave(mvm->trans); |
8ca151b5 JB |
627 | |
628 | iwl_phy_db_free(mvm->phy_db); | |
629 | mvm->phy_db = NULL; | |
630 | ||
8ca151b5 | 631 | iwl_free_nvm_data(mvm->nvm_data); |
ae2b21b0 | 632 | for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) |
8ca151b5 JB |
633 | kfree(mvm->nvm_sections[i].data); |
634 | ||
ce792918 GG |
635 | iwl_mvm_tof_clean(mvm); |
636 | ||
8ca151b5 JB |
637 | ieee80211_free_hw(mvm->hw); |
638 | } | |
639 | ||
640 | struct iwl_async_handler_entry { | |
641 | struct list_head list; | |
642 | struct iwl_rx_cmd_buffer rxb; | |
0416841d | 643 | void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); |
8ca151b5 JB |
644 | }; |
645 | ||
646 | void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm) | |
647 | { | |
648 | struct iwl_async_handler_entry *entry, *tmp; | |
649 | ||
650 | spin_lock_bh(&mvm->async_handlers_lock); | |
651 | list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) { | |
652 | iwl_free_rxb(&entry->rxb); | |
653 | list_del(&entry->list); | |
654 | kfree(entry); | |
655 | } | |
656 | spin_unlock_bh(&mvm->async_handlers_lock); | |
657 | } | |
658 | ||
659 | static void iwl_mvm_async_handlers_wk(struct work_struct *wk) | |
660 | { | |
661 | struct iwl_mvm *mvm = | |
662 | container_of(wk, struct iwl_mvm, async_handlers_wk); | |
663 | struct iwl_async_handler_entry *entry, *tmp; | |
664 | struct list_head local_list; | |
665 | ||
666 | INIT_LIST_HEAD(&local_list); | |
667 | ||
668 | /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */ | |
669 | mutex_lock(&mvm->mutex); | |
670 | ||
671 | /* | |
672 | * Sync with Rx path with a lock. Remove all the entries from this list, | |
673 | * add them to a local one (lock free), and then handle them. | |
674 | */ | |
675 | spin_lock_bh(&mvm->async_handlers_lock); | |
676 | list_splice_init(&mvm->async_handlers_list, &local_list); | |
677 | spin_unlock_bh(&mvm->async_handlers_lock); | |
678 | ||
679 | list_for_each_entry_safe(entry, tmp, &local_list, list) { | |
0416841d | 680 | entry->fn(mvm, &entry->rxb); |
8ca151b5 JB |
681 | iwl_free_rxb(&entry->rxb); |
682 | list_del(&entry->list); | |
683 | kfree(entry); | |
684 | } | |
685 | mutex_unlock(&mvm->mutex); | |
686 | } | |
687 | ||
917f39bb EG |
688 | static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm, |
689 | struct iwl_rx_packet *pkt) | |
690 | { | |
691 | struct iwl_fw_dbg_trigger_tlv *trig; | |
692 | struct iwl_fw_dbg_trigger_cmd *cmds_trig; | |
917f39bb EG |
693 | int i; |
694 | ||
695 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF)) | |
696 | return; | |
697 | ||
698 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF); | |
699 | cmds_trig = (void *)trig->data; | |
700 | ||
701 | if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig)) | |
702 | return; | |
703 | ||
704 | for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) { | |
705 | /* don't collect on CMD 0 */ | |
706 | if (!cmds_trig->cmds[i].cmd_id) | |
707 | break; | |
708 | ||
0ab66e6d SS |
709 | if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd || |
710 | cmds_trig->cmds[i].group_id != pkt->hdr.group_id) | |
917f39bb EG |
711 | continue; |
712 | ||
5d4f929e | 713 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, |
0ab66e6d SS |
714 | "CMD 0x%02x.%02x received", |
715 | pkt->hdr.group_id, pkt->hdr.cmd); | |
917f39bb EG |
716 | break; |
717 | } | |
718 | } | |
719 | ||
f7e6469f | 720 | static void iwl_mvm_rx_dispatch(struct iwl_op_mode *op_mode, |
1be5d8cc | 721 | struct napi_struct *napi, |
f7e6469f | 722 | struct iwl_rx_cmd_buffer *rxb) |
8ca151b5 JB |
723 | { |
724 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
725 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
726 | u8 i; | |
727 | ||
0416841d | 728 | if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD)) { |
1be5d8cc | 729 | iwl_mvm_rx_rx_mpdu(mvm, napi, rxb); |
f7e6469f | 730 | return; |
0416841d | 731 | } |
1738d60b | 732 | |
917f39bb EG |
733 | iwl_mvm_rx_check_trigger(mvm, pkt); |
734 | ||
8ca151b5 JB |
735 | /* |
736 | * Do the notification wait before RX handlers so | |
737 | * even if the RX handler consumes the RXB we have | |
738 | * access to it in the notification wait entry. | |
739 | */ | |
740 | iwl_notification_wait_notify(&mvm->notif_wait, pkt); | |
741 | ||
742 | for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) { | |
743 | const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i]; | |
36eed56a EG |
744 | struct iwl_async_handler_entry *entry; |
745 | ||
1230b16b | 746 | if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) |
36eed56a EG |
747 | continue; |
748 | ||
0416841d JB |
749 | if (!rx_h->async) { |
750 | rx_h->fn(mvm, rxb); | |
f7e6469f | 751 | return; |
0416841d | 752 | } |
36eed56a EG |
753 | |
754 | entry = kzalloc(sizeof(*entry), GFP_ATOMIC); | |
755 | /* we can't do much... */ | |
756 | if (!entry) | |
f7e6469f | 757 | return; |
36eed56a EG |
758 | |
759 | entry->rxb._page = rxb_steal_page(rxb); | |
760 | entry->rxb._offset = rxb->_offset; | |
761 | entry->rxb._rx_page_order = rxb->_rx_page_order; | |
762 | entry->fn = rx_h->fn; | |
763 | spin_lock(&mvm->async_handlers_lock); | |
764 | list_add_tail(&entry->list, &mvm->async_handlers_list); | |
765 | spin_unlock(&mvm->async_handlers_lock); | |
766 | schedule_work(&mvm->async_handlers_wk); | |
767 | break; | |
8ca151b5 | 768 | } |
8ca151b5 JB |
769 | } |
770 | ||
771 | static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue) | |
772 | { | |
773 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
774 | int mq = mvm->queue_to_mac80211[queue]; | |
775 | ||
776 | if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE)) | |
777 | return; | |
778 | ||
df197c00 | 779 | if (atomic_inc_return(&mvm->mac80211_queue_stop_count[mq]) > 1) { |
8ca151b5 JB |
780 | IWL_DEBUG_TX_QUEUES(mvm, |
781 | "queue %d (mac80211 %d) already stopped\n", | |
782 | queue, mq); | |
783 | return; | |
784 | } | |
785 | ||
8ca151b5 JB |
786 | ieee80211_stop_queue(mvm->hw, mq); |
787 | } | |
788 | ||
789 | static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue) | |
790 | { | |
791 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
792 | int mq = mvm->queue_to_mac80211[queue]; | |
793 | ||
794 | if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE)) | |
795 | return; | |
796 | ||
df197c00 | 797 | if (atomic_dec_return(&mvm->mac80211_queue_stop_count[mq]) > 0) { |
8ca151b5 | 798 | IWL_DEBUG_TX_QUEUES(mvm, |
df197c00 | 799 | "queue %d (mac80211 %d) still stopped\n", |
8ca151b5 JB |
800 | queue, mq); |
801 | return; | |
802 | } | |
803 | ||
8ca151b5 JB |
804 | ieee80211_wake_queue(mvm->hw, mq); |
805 | } | |
806 | ||
9ee718aa EL |
807 | void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) |
808 | { | |
809 | if (state) | |
810 | set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); | |
811 | else | |
812 | clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); | |
813 | ||
814 | wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); | |
815 | } | |
816 | ||
14cfca71 | 817 | static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) |
8ca151b5 JB |
818 | { |
819 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
31b8b343 | 820 | bool calibrating = ACCESS_ONCE(mvm->calibrating); |
8ca151b5 JB |
821 | |
822 | if (state) | |
823 | set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); | |
824 | else | |
825 | clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); | |
826 | ||
9ee718aa | 827 | wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); |
14cfca71 | 828 | |
31b8b343 EG |
829 | /* iwl_run_init_mvm_ucode is waiting for results, abort it */ |
830 | if (calibrating) | |
831 | iwl_abort_notification_waits(&mvm->notif_wait); | |
832 | ||
833 | /* | |
834 | * Stop the device if we run OPERATIONAL firmware or if we are in the | |
835 | * middle of the calibrations. | |
836 | */ | |
837 | return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating); | |
8ca151b5 JB |
838 | } |
839 | ||
840 | static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) | |
841 | { | |
842 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
843 | struct ieee80211_tx_info *info; | |
844 | ||
845 | info = IEEE80211_SKB_CB(skb); | |
846 | iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); | |
847 | ieee80211_free_txskb(mvm->hw, skb); | |
848 | } | |
849 | ||
ac1ed416 JB |
850 | struct iwl_mvm_reprobe { |
851 | struct device *dev; | |
852 | struct work_struct work; | |
853 | }; | |
854 | ||
855 | static void iwl_mvm_reprobe_wk(struct work_struct *wk) | |
856 | { | |
857 | struct iwl_mvm_reprobe *reprobe; | |
858 | ||
859 | reprobe = container_of(wk, struct iwl_mvm_reprobe, work); | |
860 | if (device_reprobe(reprobe->dev)) | |
861 | dev_err(reprobe->dev, "reprobe failed!\n"); | |
862 | kfree(reprobe); | |
863 | module_put(THIS_MODULE); | |
864 | } | |
865 | ||
4bfa47f3 EG |
866 | static void iwl_mvm_fw_error_dump_wk(struct work_struct *work) |
867 | { | |
868 | struct iwl_mvm *mvm = | |
d2709ad7 | 869 | container_of(work, struct iwl_mvm, fw_dump_wk.work); |
4bfa47f3 | 870 | |
fb2380a2 LK |
871 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT)) |
872 | return; | |
873 | ||
4bfa47f3 | 874 | mutex_lock(&mvm->mutex); |
145d90b6 EG |
875 | |
876 | /* stop recording */ | |
877 | if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) { | |
878 | iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100); | |
879 | } else { | |
880 | iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0); | |
881 | /* wait before we collect the data till the DBGC stop */ | |
882 | udelay(100); | |
883 | } | |
884 | ||
4bfa47f3 | 885 | iwl_mvm_fw_error_dump(mvm); |
e66e0b70 EG |
886 | |
887 | /* start recording again if the firmware is not crashed */ | |
888 | WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) && | |
9beda940 EG |
889 | mvm->fw->dbg_dest_tlv && |
890 | iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf)); | |
e66e0b70 | 891 | |
4bfa47f3 | 892 | mutex_unlock(&mvm->mutex); |
fb2380a2 LK |
893 | |
894 | iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT); | |
4bfa47f3 EG |
895 | } |
896 | ||
b08c1d97 | 897 | void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) |
8ca151b5 | 898 | { |
8ca151b5 JB |
899 | iwl_abort_notification_waits(&mvm->notif_wait); |
900 | ||
992f81fc DS |
901 | /* |
902 | * This is a bit racy, but worst case we tell mac80211 about | |
903 | * a stopped/aborted scan when that was already done which | |
904 | * is not a problem. It is necessary to abort any os scan | |
905 | * here because mac80211 requires having the scan cleared | |
906 | * before restarting. | |
907 | * We'll reset the scan_status to NONE in restart cleanup in | |
908 | * the next start() call from mac80211. If restart isn't called | |
909 | * (no fw restart) scan status will stay busy. | |
910 | */ | |
4ffb3650 | 911 | iwl_mvm_report_scan_aborted(mvm); |
992f81fc | 912 | |
8ca151b5 JB |
913 | /* |
914 | * If we're restarting already, don't cycle restarts. | |
915 | * If INIT fw asserted, it will likely fail again. | |
916 | * If WoWLAN fw asserted, don't restart either, mac80211 | |
917 | * can't recover this since we're already half suspended. | |
918 | */ | |
60f1071c | 919 | if (!mvm->restart_fw && fw_error) { |
36fb9017 OG |
920 | iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert, |
921 | NULL); | |
60f1071c LC |
922 | } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, |
923 | &mvm->status)) { | |
ac1ed416 JB |
924 | struct iwl_mvm_reprobe *reprobe; |
925 | ||
926 | IWL_ERR(mvm, | |
927 | "Firmware error during reconfiguration - reprobe!\n"); | |
928 | ||
929 | /* | |
930 | * get a module reference to avoid doing this while unloading | |
931 | * anyway and to avoid scheduling a work with code that's | |
932 | * being removed. | |
933 | */ | |
934 | if (!try_module_get(THIS_MODULE)) { | |
935 | IWL_ERR(mvm, "Module is being unloaded - abort\n"); | |
936 | return; | |
937 | } | |
938 | ||
939 | reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); | |
940 | if (!reprobe) { | |
941 | module_put(THIS_MODULE); | |
942 | return; | |
943 | } | |
944 | reprobe->dev = mvm->trans->dev; | |
945 | INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); | |
946 | schedule_work(&reprobe->work); | |
60f1071c | 947 | } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) { |
7498cf4c EP |
948 | /* don't let the transport/FW power down */ |
949 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
950 | ||
b08c1d97 | 951 | if (fw_error && mvm->restart_fw > 0) |
291aa7c4 | 952 | mvm->restart_fw--; |
8ca151b5 JB |
953 | ieee80211_restart_hw(mvm->hw); |
954 | } | |
955 | } | |
956 | ||
715c998f EG |
957 | static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) |
958 | { | |
959 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
960 | ||
961 | iwl_mvm_dump_nic_error_log(mvm); | |
1bd3cbc1 | 962 | |
b08c1d97 | 963 | iwl_mvm_nic_restart(mvm, true); |
715c998f EG |
964 | } |
965 | ||
8ca151b5 JB |
966 | static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) |
967 | { | |
715c998f EG |
968 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); |
969 | ||
8ca151b5 | 970 | WARN_ON(1); |
b08c1d97 | 971 | iwl_mvm_nic_restart(mvm, true); |
8ca151b5 JB |
972 | } |
973 | ||
37577fe2 EP |
974 | struct iwl_d0i3_iter_data { |
975 | struct iwl_mvm *mvm; | |
976 | u8 ap_sta_id; | |
977 | u8 vif_count; | |
b2492501 AN |
978 | u8 offloading_tid; |
979 | bool disable_offloading; | |
37577fe2 EP |
980 | }; |
981 | ||
b2492501 AN |
982 | static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm, |
983 | struct ieee80211_vif *vif, | |
984 | struct iwl_d0i3_iter_data *iter_data) | |
985 | { | |
986 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
987 | struct ieee80211_sta *ap_sta; | |
988 | struct iwl_mvm_sta *mvmsta; | |
989 | u32 available_tids = 0; | |
990 | u8 tid; | |
991 | ||
992 | if (WARN_ON(vif->type != NL80211_IFTYPE_STATION || | |
993 | mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) | |
994 | return false; | |
995 | ||
996 | ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]); | |
997 | if (IS_ERR_OR_NULL(ap_sta)) | |
998 | return false; | |
999 | ||
1000 | mvmsta = iwl_mvm_sta_from_mac80211(ap_sta); | |
1001 | spin_lock_bh(&mvmsta->lock); | |
1002 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
1003 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
1004 | ||
1005 | /* | |
1006 | * in case of pending tx packets, don't use this tid | |
1007 | * for offloading in order to prevent reuse of the same | |
1008 | * qos seq counters. | |
1009 | */ | |
1010 | if (iwl_mvm_tid_queued(tid_data)) | |
1011 | continue; | |
1012 | ||
1013 | if (tid_data->state != IWL_AGG_OFF) | |
1014 | continue; | |
1015 | ||
1016 | available_tids |= BIT(tid); | |
1017 | } | |
1018 | spin_unlock_bh(&mvmsta->lock); | |
1019 | ||
1020 | /* | |
1021 | * disallow protocol offloading if we have no available tid | |
1022 | * (with no pending frames and no active aggregation, | |
1023 | * as we don't handle "holes" properly - the scheduler needs the | |
1024 | * frame's seq number and TFD index to match) | |
1025 | */ | |
1026 | if (!available_tids) | |
1027 | return true; | |
1028 | ||
1029 | /* for simplicity, just use the first available tid */ | |
1030 | iter_data->offloading_tid = ffs(available_tids) - 1; | |
1031 | return false; | |
1032 | } | |
1033 | ||
d6230972 EP |
1034 | static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac, |
1035 | struct ieee80211_vif *vif) | |
1036 | { | |
37577fe2 EP |
1037 | struct iwl_d0i3_iter_data *data = _data; |
1038 | struct iwl_mvm *mvm = data->mvm; | |
1039 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
d6230972 EP |
1040 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; |
1041 | ||
1042 | IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr); | |
1043 | if (vif->type != NL80211_IFTYPE_STATION || | |
1044 | !vif->bss_conf.assoc) | |
1045 | return; | |
1046 | ||
b2492501 AN |
1047 | /* |
1048 | * in case of pending tx packets or active aggregations, | |
1049 | * avoid offloading features in order to prevent reuse of | |
1050 | * the same qos seq counters. | |
1051 | */ | |
1052 | if (iwl_mvm_disallow_offloading(mvm, vif, data)) | |
1053 | data->disable_offloading = true; | |
1054 | ||
d6230972 | 1055 | iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags); |
8bd22e7b | 1056 | iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags); |
d6230972 EP |
1057 | |
1058 | /* | |
1059 | * on init/association, mvm already configures POWER_TABLE_CMD | |
1060 | * and REPLY_MCAST_FILTER_CMD, so currently don't | |
1061 | * reconfigure them (we might want to use different | |
1062 | * params later on, though). | |
1063 | */ | |
37577fe2 EP |
1064 | data->ap_sta_id = mvmvif->ap_sta_id; |
1065 | data->vif_count++; | |
d6230972 EP |
1066 | } |
1067 | ||
1a95c8df | 1068 | static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm, |
c8b06a99 | 1069 | struct iwl_wowlan_config_cmd *cmd, |
1a95c8df EP |
1070 | struct iwl_d0i3_iter_data *iter_data) |
1071 | { | |
1072 | struct ieee80211_sta *ap_sta; | |
1073 | struct iwl_mvm_sta *mvm_ap_sta; | |
1074 | ||
1075 | if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT) | |
1076 | return; | |
1077 | ||
1078 | rcu_read_lock(); | |
1079 | ||
1080 | ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]); | |
1081 | if (IS_ERR_OR_NULL(ap_sta)) | |
1082 | goto out; | |
1083 | ||
1084 | mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); | |
c8b06a99 | 1085 | cmd->is_11n_connection = ap_sta->ht_cap.ht_supported; |
b2492501 | 1086 | cmd->offloading_tid = iter_data->offloading_tid; |
1a95c8df EP |
1087 | |
1088 | /* | |
1089 | * The d0i3 uCode takes care of the nonqos counters, | |
1090 | * so configure only the qos seq ones. | |
1091 | */ | |
c8b06a99 | 1092 | iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd); |
1a95c8df EP |
1093 | out: |
1094 | rcu_read_unlock(); | |
1095 | } | |
6735943f EP |
1096 | |
1097 | int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode) | |
b3370d47 EP |
1098 | { |
1099 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
98ee7783 | 1100 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; |
b77f06d9 | 1101 | int ret; |
37577fe2 EP |
1102 | struct iwl_d0i3_iter_data d0i3_iter_data = { |
1103 | .mvm = mvm, | |
1104 | }; | |
c8b06a99 EG |
1105 | struct iwl_wowlan_config_cmd wowlan_config_cmd = { |
1106 | .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME | | |
1107 | IWL_WOWLAN_WAKEUP_BEACON_MISS | | |
1108 | IWL_WOWLAN_WAKEUP_LINK_CHANGE | | |
1109 | IWL_WOWLAN_WAKEUP_BCN_FILTERING), | |
b77f06d9 | 1110 | }; |
98ee7783 AN |
1111 | struct iwl_d3_manager_config d3_cfg_cmd = { |
1112 | .min_sleep_time = cpu_to_le32(1000), | |
d9f1fc20 | 1113 | .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR), |
98ee7783 | 1114 | }; |
b3370d47 EP |
1115 | |
1116 | IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n"); | |
98ee7783 | 1117 | |
b2492501 | 1118 | set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); |
b2492501 | 1119 | |
f4cf8680 EP |
1120 | /* |
1121 | * iwl_mvm_ref_sync takes a reference before checking the flag. | |
1122 | * so by checking there is no held reference we prevent a state | |
1123 | * in which iwl_mvm_ref_sync continues successfully while we | |
1124 | * configure the firmware to enter d0i3 | |
1125 | */ | |
1126 | if (iwl_mvm_ref_taken(mvm)) { | |
1127 | IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n"); | |
1128 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
caf1578a | 1129 | wake_up(&mvm->d0i3_exit_waitq); |
f4cf8680 EP |
1130 | return 1; |
1131 | } | |
1132 | ||
d6230972 EP |
1133 | ieee80211_iterate_active_interfaces_atomic(mvm->hw, |
1134 | IEEE80211_IFACE_ITER_NORMAL, | |
1135 | iwl_mvm_enter_d0i3_iterator, | |
37577fe2 EP |
1136 | &d0i3_iter_data); |
1137 | if (d0i3_iter_data.vif_count == 1) { | |
1138 | mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id; | |
b2492501 | 1139 | mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading; |
37577fe2 EP |
1140 | } else { |
1141 | WARN_ON_ONCE(d0i3_iter_data.vif_count > 1); | |
1142 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
b2492501 | 1143 | mvm->d0i3_offloading = false; |
37577fe2 | 1144 | } |
d6230972 | 1145 | |
ecc7c518 EG |
1146 | /* make sure we have no running tx while configuring the seqno */ |
1147 | synchronize_net(); | |
1148 | ||
183edd84 EP |
1149 | /* configure wowlan configuration only if needed */ |
1150 | if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) { | |
1151 | iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, | |
1152 | &d0i3_iter_data); | |
1153 | ||
1154 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags, | |
1155 | sizeof(wowlan_config_cmd), | |
1156 | &wowlan_config_cmd); | |
1157 | if (ret) | |
1158 | return ret; | |
1159 | } | |
b77f06d9 | 1160 | |
98ee7783 AN |
1161 | return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, |
1162 | flags | CMD_MAKE_TRANS_IDLE, | |
1163 | sizeof(d3_cfg_cmd), &d3_cfg_cmd); | |
b3370d47 EP |
1164 | } |
1165 | ||
d6230972 EP |
1166 | static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac, |
1167 | struct ieee80211_vif *vif) | |
1168 | { | |
1169 | struct iwl_mvm *mvm = _data; | |
1170 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO; | |
1171 | ||
1172 | IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr); | |
1173 | if (vif->type != NL80211_IFTYPE_STATION || | |
1174 | !vif->bss_conf.assoc) | |
1175 | return; | |
1176 | ||
1177 | iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags); | |
1178 | } | |
1179 | ||
b3df2247 DS |
1180 | struct iwl_mvm_wakeup_reason_iter_data { |
1181 | struct iwl_mvm *mvm; | |
1182 | u32 wakeup_reasons; | |
1183 | }; | |
1184 | ||
1185 | static void iwl_mvm_d0i3_wakeup_reason_iter(void *_data, u8 *mac, | |
1186 | struct ieee80211_vif *vif) | |
37577fe2 | 1187 | { |
b3df2247 | 1188 | struct iwl_mvm_wakeup_reason_iter_data *data = _data; |
37577fe2 EP |
1189 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
1190 | ||
1191 | if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc && | |
b3df2247 DS |
1192 | data->mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) { |
1193 | if (data->wakeup_reasons & | |
1194 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH) | |
1195 | iwl_mvm_connection_loss(data->mvm, vif, "D0i3"); | |
1196 | else | |
1197 | ieee80211_beacon_loss(vif); | |
1198 | } | |
37577fe2 EP |
1199 | } |
1200 | ||
b2492501 AN |
1201 | void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq) |
1202 | { | |
1203 | struct ieee80211_sta *sta = NULL; | |
1204 | struct iwl_mvm_sta *mvm_ap_sta; | |
1205 | int i; | |
1206 | bool wake_queues = false; | |
1207 | ||
1208 | lockdep_assert_held(&mvm->mutex); | |
1209 | ||
1210 | spin_lock_bh(&mvm->d0i3_tx_lock); | |
1211 | ||
1212 | if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT) | |
1213 | goto out; | |
1214 | ||
1215 | IWL_DEBUG_RPM(mvm, "re-enqueue packets\n"); | |
1216 | ||
1217 | /* get the sta in order to update seq numbers and re-enqueue skbs */ | |
1218 | sta = rcu_dereference_protected( | |
1219 | mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id], | |
1220 | lockdep_is_held(&mvm->mutex)); | |
1221 | ||
1222 | if (IS_ERR_OR_NULL(sta)) { | |
1223 | sta = NULL; | |
1224 | goto out; | |
1225 | } | |
1226 | ||
1227 | if (mvm->d0i3_offloading && qos_seq) { | |
1228 | /* update qos seq numbers if offloading was enabled */ | |
9d8ce6af | 1229 | mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta); |
b2492501 AN |
1230 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
1231 | u16 seq = le16_to_cpu(qos_seq[i]); | |
1232 | /* firmware stores last-used one, we store next one */ | |
1233 | seq += 0x10; | |
1234 | mvm_ap_sta->tid_data[i].seq_number = seq; | |
1235 | } | |
1236 | } | |
1237 | out: | |
1238 | /* re-enqueue (or drop) all packets */ | |
1239 | while (!skb_queue_empty(&mvm->d0i3_tx)) { | |
1240 | struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx); | |
1241 | ||
1242 | if (!sta || iwl_mvm_tx_skb(mvm, skb, sta)) | |
1243 | ieee80211_free_txskb(mvm->hw, skb); | |
1244 | ||
1245 | /* if the skb_queue is not empty, we need to wake queues */ | |
1246 | wake_queues = true; | |
1247 | } | |
1248 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
1249 | wake_up(&mvm->d0i3_exit_waitq); | |
1250 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
1251 | if (wake_queues) | |
1252 | ieee80211_wake_queues(mvm->hw); | |
1253 | ||
1254 | spin_unlock_bh(&mvm->d0i3_tx_lock); | |
1255 | } | |
1256 | ||
37577fe2 EP |
1257 | static void iwl_mvm_d0i3_exit_work(struct work_struct *wk) |
1258 | { | |
1259 | struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work); | |
1260 | struct iwl_host_cmd get_status_cmd = { | |
1261 | .id = WOWLAN_GET_STATUSES, | |
a1022927 | 1262 | .flags = CMD_HIGH_PRIO | CMD_WANT_SKB, |
37577fe2 | 1263 | }; |
3afec639 | 1264 | struct iwl_wowlan_status *status; |
37577fe2 | 1265 | int ret; |
b3df2247 | 1266 | u32 handled_reasons, wakeup_reasons; |
b2492501 | 1267 | __le16 *qos_seq = NULL; |
37577fe2 EP |
1268 | |
1269 | mutex_lock(&mvm->mutex); | |
1270 | ret = iwl_mvm_send_cmd(mvm, &get_status_cmd); | |
1271 | if (ret) | |
1272 | goto out; | |
1273 | ||
1274 | if (!get_status_cmd.resp_pkt) | |
1275 | goto out; | |
1276 | ||
1277 | status = (void *)get_status_cmd.resp_pkt->data; | |
1278 | wakeup_reasons = le32_to_cpu(status->wakeup_reasons); | |
b2492501 | 1279 | qos_seq = status->qos_seq_ctr; |
37577fe2 EP |
1280 | |
1281 | IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons); | |
1282 | ||
b3df2247 DS |
1283 | handled_reasons = IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | |
1284 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; | |
1285 | if (wakeup_reasons & handled_reasons) { | |
1286 | struct iwl_mvm_wakeup_reason_iter_data data = { | |
1287 | .mvm = mvm, | |
1288 | .wakeup_reasons = wakeup_reasons, | |
1289 | }; | |
1290 | ||
37577fe2 EP |
1291 | ieee80211_iterate_active_interfaces( |
1292 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
b3df2247 DS |
1293 | iwl_mvm_d0i3_wakeup_reason_iter, &data); |
1294 | } | |
37577fe2 | 1295 | out: |
b2492501 | 1296 | iwl_mvm_d0i3_enable_tx(mvm, qos_seq); |
47c8b154 | 1297 | |
e5629be7 EP |
1298 | /* qos_seq might point inside resp_pkt, so free it only now */ |
1299 | if (get_status_cmd.resp_pkt) | |
1300 | iwl_free_resp(&get_status_cmd); | |
1301 | ||
47c8b154 JD |
1302 | /* the FW might have updated the regdomain */ |
1303 | iwl_mvm_update_changed_regdom(mvm); | |
1304 | ||
d15a747f | 1305 | iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK); |
37577fe2 EP |
1306 | mutex_unlock(&mvm->mutex); |
1307 | } | |
1308 | ||
d15a747f | 1309 | int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm) |
b3370d47 | 1310 | { |
98ee7783 AN |
1311 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE | |
1312 | CMD_WAKE_UP_TRANS; | |
d6230972 | 1313 | int ret; |
b3370d47 EP |
1314 | |
1315 | IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n"); | |
98ee7783 | 1316 | |
d15a747f EP |
1317 | mutex_lock(&mvm->d0i3_suspend_mutex); |
1318 | if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) { | |
1319 | IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n"); | |
1320 | __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags); | |
1321 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
1322 | return 0; | |
1323 | } | |
1324 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
1325 | ||
d6230972 EP |
1326 | ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL); |
1327 | if (ret) | |
37577fe2 | 1328 | goto out; |
d6230972 EP |
1329 | |
1330 | ieee80211_iterate_active_interfaces_atomic(mvm->hw, | |
1331 | IEEE80211_IFACE_ITER_NORMAL, | |
1332 | iwl_mvm_exit_d0i3_iterator, | |
1333 | mvm); | |
37577fe2 EP |
1334 | out: |
1335 | schedule_work(&mvm->d0i3_exit_work); | |
1336 | return ret; | |
b3370d47 EP |
1337 | } |
1338 | ||
6735943f | 1339 | int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode) |
d15a747f EP |
1340 | { |
1341 | struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); | |
1342 | ||
1343 | iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK); | |
1344 | return _iwl_mvm_exit_d0i3(mvm); | |
1345 | } | |
1346 | ||
8ca151b5 JB |
1347 | static const struct iwl_op_mode_ops iwl_mvm_ops = { |
1348 | .start = iwl_op_mode_mvm_start, | |
1349 | .stop = iwl_op_mode_mvm_stop, | |
1350 | .rx = iwl_mvm_rx_dispatch, | |
1351 | .queue_full = iwl_mvm_stop_sw_queue, | |
1352 | .queue_not_full = iwl_mvm_wake_sw_queue, | |
1353 | .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, | |
1354 | .free_skb = iwl_mvm_free_skb, | |
1355 | .nic_error = iwl_mvm_nic_error, | |
1356 | .cmd_queue_full = iwl_mvm_cmd_queue_full, | |
1357 | .nic_config = iwl_mvm_nic_config, | |
b3370d47 EP |
1358 | .enter_d0i3 = iwl_mvm_enter_d0i3, |
1359 | .exit_d0i3 = iwl_mvm_exit_d0i3, | |
8ca151b5 | 1360 | }; |